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_tracemalloc: add domain to trace keys

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* hashtable.h: key has now a variable size
* _tracemalloc uses (pointer: void*, domain: unsigned int) as key for traces
This commit is contained in:
Victor Stinner 2016-03-18 21:52:22 +01:00
parent 5decb84454
commit 51b846c47a
4 changed files with 271 additions and 122 deletions
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89
Modules/hashtable.h
View file

@ -20,26 +20,31 @@ typedef struct {
/* used by _Py_hashtable_t.buckets to link entries */
_Py_slist_item_t _Py_slist_item;
const void *key;
Py_uhash_t key_hash;
/* data follows */
} _Py_hashtable_entry_t;
#define _Py_HASHTABLE_ENTRY_DATA(ENTRY) \
((char *)(ENTRY) + sizeof(_Py_hashtable_entry_t))
#define _Py_HASHTABLE_ENTRY_KEY(ENTRY) \
((void *)((char *)(ENTRY) + sizeof(_Py_hashtable_entry_t)))
#define _Py_HASHTABLE_ENTRY_DATA_AS_VOID_P(ENTRY) \
(*(void **)_Py_HASHTABLE_ENTRY_DATA(ENTRY))
#define _Py_HASHTABLE_ENTRY_DATA(TABLE, ENTRY) \
((char *)(ENTRY) + sizeof(_Py_hashtable_entry_t) + (TABLE)->key_size)
#define _Py_HASHTABLE_ENTRY_DATA_AS_VOID_P(TABLE, ENTRY) \
(*(void **)_Py_HASHTABLE_ENTRY_DATA(TABLE, ENTRY))
#define _Py_HASHTABLE_ENTRY_READ_DATA(TABLE, DATA, DATA_SIZE, ENTRY) \
do { \
assert((DATA_SIZE) == (TABLE)->data_size); \
memcpy(DATA, _Py_HASHTABLE_ENTRY_DATA(ENTRY), DATA_SIZE); \
memcpy(DATA, _Py_HASHTABLE_ENTRY_DATA(TABLE, ENTRY), DATA_SIZE); \
} while (0)
typedef Py_uhash_t (*_Py_hashtable_hash_func) (const void *key);
typedef int (*_Py_hashtable_compare_func) (const void *key, const _Py_hashtable_entry_t *he);
typedef Py_uhash_t (*_Py_hashtable_hash_func) (size_t key_size,
const void *pkey);
typedef int (*_Py_hashtable_compare_func) (size_t key_size,
const void *pkey,
const _Py_hashtable_entry_t *he);
typedef void* (*_Py_hashtable_copy_data_func)(void *data);
typedef void (*_Py_hashtable_free_data_func)(void *data);
typedef size_t (*_Py_hashtable_get_data_size_func)(void *data);
@ -56,6 +61,7 @@ typedef struct {
size_t num_buckets;
size_t entries; /* Total number of entries in the table. */
_Py_slist_t *buckets;
size_t key_size;
size_t data_size;
_Py_hashtable_hash_func hash_func;
@ -67,15 +73,21 @@ typedef struct {
} _Py_hashtable_t;
/* hash and compare functions for integers and pointers */
PyAPI_FUNC(Py_uhash_t) _Py_hashtable_hash_ptr(const void *key);
PyAPI_FUNC(Py_uhash_t) _Py_hashtable_hash_int(const void *key);
PyAPI_FUNC(int) _Py_hashtable_compare_direct(const void *key, const _Py_hashtable_entry_t *entry);
PyAPI_FUNC(Py_uhash_t) _Py_hashtable_hash_ptr(
size_t key_size,
const void *pkey);
PyAPI_FUNC(int) _Py_hashtable_compare_direct(
size_t key_size,
const void *pkey,
const _Py_hashtable_entry_t *entry);
PyAPI_FUNC(_Py_hashtable_t *) _Py_hashtable_new(
size_t key_size,
size_t data_size,
_Py_hashtable_hash_func hash_func,
_Py_hashtable_compare_func compare_func);
PyAPI_FUNC(_Py_hashtable_t *) _Py_hashtable_new_full(
size_t key_size,
size_t data_size,
size_t init_size,
_Py_hashtable_hash_func hash_func,
@ -88,40 +100,65 @@ PyAPI_FUNC(_Py_hashtable_t *) _Py_hashtable_copy(_Py_hashtable_t *src);
PyAPI_FUNC(void) _Py_hashtable_clear(_Py_hashtable_t *ht);
PyAPI_FUNC(void) _Py_hashtable_destroy(_Py_hashtable_t *ht);
typedef int (*_Py_hashtable_foreach_func) (_Py_hashtable_entry_t *entry, void *arg);
typedef int (*_Py_hashtable_foreach_func) (_Py_hashtable_t *ht,
_Py_hashtable_entry_t *entry,
void *arg);
PyAPI_FUNC(int) _Py_hashtable_foreach(
_Py_hashtable_t *ht,
_Py_hashtable_foreach_func func, void *arg);
_Py_hashtable_foreach_func func,
void *arg);
PyAPI_FUNC(size_t) _Py_hashtable_size(_Py_hashtable_t *ht);
PyAPI_FUNC(_Py_hashtable_entry_t*) _Py_hashtable_get_entry(
_Py_hashtable_t *ht,
const void *key);
size_t key_size,
const void *pkey);
/* Don't call directly this function,
but use _Py_HASHTABLE_SET() and _Py_HASHTABLE_SET_NODATA() macros */
PyAPI_FUNC(int) _Py_hashtable_set(
_Py_hashtable_t *ht,
const void *key,
void *data,
size_t data_size);
size_t key_size,
const void *pkey,
size_t data_size,
void *data);
/* Don't call directly this function, but use _Py_HASHTABLE_GET() macro */
PyAPI_FUNC(int) _Py_hashtable_get(
_Py_hashtable_t *ht,
const void *key,
void *data,
size_t data_size);
size_t key_size,
const void *pkey,
size_t data_size,
void *data);
/* Don't call directly this function, but use _Py_HASHTABLE_POP() macro */
PyAPI_FUNC(int) _Py_hashtable_pop(
_Py_hashtable_t *ht,
const void *key,
void *data,
size_t data_size);
size_t key_size,
const void *pkey,
size_t data_size,
void *data);
PyAPI_FUNC(void) _Py_hashtable_delete(
_Py_hashtable_t *ht,
const void *key);
size_t key_size,
const void *pkey);
#define _Py_HASHTABLE_SET(TABLE, KEY, DATA) \
_Py_hashtable_set(TABLE, KEY, &(DATA), sizeof(DATA))
_Py_hashtable_set(TABLE, sizeof(KEY), &KEY, sizeof(DATA), &(DATA))
#define _Py_HASHTABLE_SET_NODATA(TABLE, KEY) \
_Py_hashtable_set(TABLE, sizeof(KEY), &KEY, 0, NULL)
#define _Py_HASHTABLE_GET_ENTRY(TABLE, KEY) \
_Py_hashtable_get_entry(TABLE, sizeof(KEY), &(KEY))
#define _Py_HASHTABLE_GET(TABLE, KEY, DATA) \
_Py_hashtable_get(TABLE, KEY, &(DATA), sizeof(DATA))
_Py_hashtable_get(TABLE, sizeof(KEY), &(KEY), sizeof(DATA), &(DATA))
#define _Py_HASHTABLE_POP(TABLE, KEY, DATA) \
_Py_hashtable_pop(TABLE, sizeof(KEY), &(KEY), sizeof(DATA), &(DATA))
#endif /* Py_LIMITED_API */